Natural killer cells are a small population of lymphocytes. Here we show how to isolate these cells from human blood by negative selection, using a kit from StemCell Technologies. The cells obtained are viable and untouched by antibodies, and therefore ready to be used for a number of procedures.
Beeton, C., Chandy, K. G. Enrichment of NK Cells from Human Blood with the RosetteSep Kit from StemCell Technologies. J. Vis. Exp. (8), e326, doi:10.3791/326 (2007).